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 Get to Know MRIoA, the Medical Review Institute of America

Utilization Review, Data-Driven Optimization Solutions and Proactive Second Opinions

The Gold Standard for Medical Review Services

Founded in 1983, Medical Review Institute of America, LLC (MRIoA) is the top medical review company in the United States. With the largest, most extensive review network, industry-leading turnaround times (TATs), and UR licensing in all states that require it, our professionalism, enthusiasm and collaborative approach are transforming clinical care delivery nationwide.

MRIoA provides independent clinical and utilization reviews, proactive second opinions and appropriate utilization analytics for many of the country’s largest health plans, PBMs, TPAs, government entities and self-insured employers.

The MRIoA Way

At the heart of everything we do at the Medical Review Institute of America is a set of tenets called The MRIoA Way.

40+ years of review experience with over 900+ customers and more than 1,000 clinical review specialists at your disposal 7 days a week.
Honesty, integrity and confidentiality from every employee who handles a case throughout the entire review process.
Continual innovation to develop new data-driven solutions and provide value to the patients we all serve.

Meet Our Leadership Team

Ron Sullivan

Chief Executive Officer

Randy Iskowitz

Chief Revenue Officer

Aja Leichliter

Aja Leichliter

Vice President & Chief Compliance Officer


Chief Information Officer

Bob O’Brien

Vice President, Product & Platform Development

Richard Gascoigne, MD, MBA

Chief Medical Officer

David Baugh, CPA

Chief Financial Officer

Rodney Musselman, MD

Chief Medical Officer

Michelle Sterling, MD

Vice President, Medical Director, Clinical Quality

Sally Newton

Sally Newton, SPHR, SHRM-SCP

Senior Vice President of HR

Katie Tucker, PharmD

Senior Director, Clinical Pharmacy Operations

Nicole Lomeli, PharmD

Senior Director, Pharmacy Operations

Rene Lomeli, PharmD

Senior Director, Operations


MRIoA’s Accreditations, Certifications and Memberships include:


URAC is a non-profit independent accrediting agency that is known as a leader in promoting healthcare quality. Accredited organizations demonstrate a commitment to quality and excellence with consistent compliance with best practices. MRIoA holds URAC accreditation in Health Utilization Management (HUM).


URAC’s Independent Review Organization (IRO) accreditation standards validate that third-party organizations providing medical determinations are committed to a fair and impartial peer review process for both patients and physicians. MRIoA holds URAC accreditation in Independent Review Organization (IRO).


NAIRO (National Association of Independent Review Organizations) is a national trade association of URAC-accredited IROs whose primary mission is to protect the integrity of the independent review process.


HITRUST (Health Information Trust Alliance) has developed the HITRUST CSF, a certifiable framework that provides organizations with structure and clarity relating to healthcare industry information security. HITRUST certification signifies commitment to ongoing IT security.


NCQA is a non-profit organization dedicated to improving healthcare quality. The NCQA seal is a widely recognized symbol of quality. MRIoA is NCQA accredited in Utilization Management (UM).


The Self-Insurance Institute of America, Inc. (SIIA) is a member-based association dedicated to protecting and promoting the business interests of companies in the self-insurance and captive insurance industry such as TPAs, Captive Managers, Excess/Stop-Loss Carriers and others.


SOC for Service Organizations reports are designed to build trust and confidence services performed and controls employed through a report by an independent CPA and validation that the systems used to process users’ data maintain the confidentiality and privacy of information

Best Places to Work

MRIoA earned the 2024 Top Workplaces USA award, issued by Energage. Top Workplaces USA offers national recognition for large organizations with more than 150 employees operating in multiple markets. This award is in addition to our Top Workplaces Salt Lake City award received every year since 2018.


CAHP works to sustain a strong environment in which our member plans can provide access to products that offer choice and flexibility to the Californians they serve. Most of our member plans provide coverage to Californians through the individual and group markets.


Texas Association of Health Plans (TAHP) is the statewide trade association representing health insurers, Medicaid plans, Medicare Advantage plans, and other related healthcare entities operating in Texas.

Top Workplace for Remote Work

MRIoA is a recipient of the 2024 Top Workplaces for Remote Work award, featured by Monster, a global leader in connecting people and jobs, and awarded by Energage, a purpose-driven organization that builds and brands employers of choice, determines the awards through an employee survey.

Itiliti Health

Itiliti Health’s best-in-class technology leverages AI and automation to accelerate communication between payers and providers, creating a touchless prior authorization solution that applies the right medical policies while helping to automate prior authorizations quickly, securely and cost-effectively.

The Leading Voices in Healthcare

Rodney Musselman, MD

Executive Medical Director – UM Solutions & Sales

Michelle Sterling, MD

Executive Medical Director, Clinical Quality

Heather Grigo, MD

Medical Director

Byron Harris, PharmD

Vice President of Pharmacy Programs

Tuan Do, PharmD, MBA, BCPS

Clinical Review Pharmacist

Sybel Beattie, RN, CLNC

Sr. Director of Nursing Services

Jacob Woods, MSN, RN

Clinical Quality

Ginger White, RN

Manager – Nursing Operations

Why Delay?

Harness the power of an independent review to ensure evidence-based care and appropriate utilization of treatments.

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